{% extends "main.html" %}
{% block body %}
counts: {{counts}}
<img src="{{static_url('baidu.png')}}">
<form enctype="multipart/form-data" method='POST'>
    <input type="file" name="file_a">
    <input type="file" name="file_b">
    <input type="text" name="age">
    <button type='submit'>上传</button>
</form>
{% end %}
